Ditching and grading machinery



March 10'. 1925.

' c. w CUNDIFF DTTCHING AND GRADING MACHINERY Filed Aug. 51, 1923 2 Sheets-Sheet l nHHHHHHHHHH'H IU II he lllllllllllllll IIH gwwmtoz March 10, 1925. I 1,529,465

C.W CUNDWF DITCHING AND GRADING MACHINERY Filed Aug. 31. 1923 2 Sheets-Sheet 2' Patented Mar. 10, 1925.

um TED SIT ATE-s OJFZI CHARLES w. CUNDIFF,

oWENsBoRo, KENTUCKY," ASSIGNOR 'To. owENsnoizo DiTCHER & GRADER COMPANY, orownnssfono, K.nN'rUoKY,a conronnrronos KENTUCKY.

IDITCHING AND GRADING MACHINERY.

Applicationfiled August 31, 1923. sen inos seaa ia This invention relates to ditching and-- grading machinery, andprovides a newtype of same comprising certain features ofconstruction and particularly a cutting-blade formed so as to produce a flat bottom ditch which is often desired and necessary in certain classes of'ditching. l v Another advantage of the invention 1s that it is-provided with a new andimproved manner of hitching, thereby rendering more directcontrol of'the-machine relative to the draft thereof." a

Aside from the above features mentioned, the machine possesses all of the general construction embodied in the V'type ditching and grading machines, and in addition many new features as'will be 'clea-rlyexplained in the description.

Another advantage of the invention is the fact, that, due to its particular form of construction, it is renderedalmost inde structible and'will withstand considerable use without material depreciation thereof. All'parts being readily accessible,'they may be easily'replaced with new ones. Also the machine is very simple in construction and operation and may be produced at a minimum cost and sold proportionately.

In the accompanying drawings Fig. 1 is a side elevation of the machine complete;

Fig. 2 is a plan view of same;

Fig. 3 is a perspective view taken from the inner side showing the manner of connection of the blade to the landside.

Referring more particularly to the details of construction of the machine, in the drawings the numeral 1 indicates angle-iron members which are arranged in parallel order, forming the landside of the machine, the horizontal portions forming the footboard. Said angle-irons are substantially connected at their rear ends to plate 2 by means of bolts 3 which are retained by nuts 4. It will be noted that the top edge 5 of the plate 2 is curved and forming a slight concavity thereon, which aids in guiding the machine while in operation. The'front ends of said angles are connected-byplate 6 secured by means ofnrivets 7." In the-center of the parallel angle-1ron members is a spacing tube 8 1'eta1ned in position by the-- bolt 9 and nut 10, holes for receiving said bolt being provided in boththeflu'pperand lower angle irons 1.

One of theimost important featuresofthe machine is the manner of hitchcomprising the following parts An outer strap 11 as shown, and :similar 5 inner strap 12, as shown in Fig-3,11% a shoulder 13 inorder to "offset the-strap: 12

to provide ample space for the upright bar "14 which is connected to the straps 11 and" 12.bymeans of bolt 15 and nut '16l Plate 6, and straps 11 and 12 are secured together by rivets 17. Standard clevis 18 is used as shown andholes 19 in bar 14 are provided" for same, anyone of which may be-used accordingto the manner of hitch desired.- A

chain- 20 ofthedesired length is employed for connection to any form .of'power for 1 propulsion, and havinga-hook 21 connected thereto. l

A very important feature of the machine is the cutting blade 'or mold-board 22, and

it will be noted that 'same 'is provided. Withthe lower-portion bottom out whereas thereby producing a .fi'at with a pointedbladejthe V shaped ditch is produced instead thereof} also the rear lower edge 22' '1 of the blade elevates the end of said blade whereby the dirt is rapidly and properly discharged to the side of the ditch. Blade 22 is connected to the land side in the following manner :A U shaped member 24 is connected to said blade by rivets 25. The rear end of the strap 12 is formed into a tubular hinge 26, and a bolt 27 is passed through the hinge 26 and the ends of the U-shaped member 24, and is retained by nut 28. Draft beam 29 is employed as shown, the front end of which is formed as at 30 with a hole to accommodate the double clevis 31. Threaded thumbscrews 32 are used for both the single and double clevises which have threaded holes in one side of their forks to receive same. The opposite end of the beam 29 is formed as at 33, and supported by the brackets 34 which are secured to the blade 22 by rivets 35. Hand-rail 36 is provided and formed into a shoulder at 37 the lower end passing through a hole .in the end 33 of beam 29 act- 'tained in position as ing to retain the beam in place. site end of rail 36 has a shoulder 38 to form a stop upon the top portion of clip member 39 which is connected to the blade 22. Extension beam 41 is provided, preferably of wood, the front end 12 being reduced somewhat in size in order to pass through the clip 39 and also having a hole to accommodate the end of rail 36. In this manner the beam 41 and the end of said rail are reshown in Fig. 1.

In orderto support the rear end of blade 22, drag-shoe 43 is employed, and is supported by a stem 44 which is connected to same in any approved manner. A U-shaped member 45 is riveted to clip 39 (rivets not shown), which member 45 is provided with holes to receive the stem 44: as will be clearly seen'in Figs. 1 and 2, holes 46 in stem 44: being provided to receive pin 47 in order that the elevation of the end of blade 22 may be adjustable up or down.

A shoe48 is used as shown and connected to the blade 22 by bolts 49 which have countersunk heads, and retained by the nuts 50, the purpose for same being to prevent the point of the blade 22 from gouging the earth or cutting too rapidly.

A U-piece 51 is secured to the blade by rivets 52 where shown, and provided with holes to receive bolt 53 which is held by nut 54. It will be clearly seen how the ends of the brace bars 55 and 56 are connected thereto, the opposite ends of said bars are connected to the angle-irons 1 by means of a bolt 57 passing through holes in the angleirons '1 and held in place by a nut 58. Holes 59 in angle-irons 1- permit the adjustment of the blade to the landside.

A standard 60 with a hand-hold as shown, is supported by clip 61 which is connected to the blade 22 by rivets 62.

The right is herewith reserved to make The oppocertain minor changes in the details of construction, but without a departure from the general principle disclosed, provided that it becomes necessary to do so in the practical field of the development of the machine for the market.

I claim:

1. A machine of the character described including a land-side, a mold-board having a horizontal scraping edge, and an upwardly inclined rear edge, a clip secured to the outer end of the mold-board, a drag-shoe, a stem connected therewith, and means connected with the stem for adjustably connecting it with the clip for raising or lowering the end of the mold-board.

2. A machine of the character described including a land-side, a mold-board having a horizontal scraping edge, and an upwardly inclined rear edge, and a shoe secured to the mold-board adjacent the horizontal scraping edge for limiting the cutting depth of the mold-board.

3. A machine of the character described including a landside, a mold-board, a brack- I et secured thereto, draft means including outer and inner straps secured together and to the land-side, the inner strap having its end terminating in a hinge for engaging the bracket and pivotally connecting the mold-board to the landside. I i

4. A machine of the character described including a landside consisting of parallel angle-irons spaced apart, a cutting-plate secured to the angle-irons at the rear ends thereof, draft means secured to the front end of the land-side, a mold-board-pivotally connected to the land-side, and adjustable brace-bars spaced apart and pivotallyconnected to the mold-board and to the upper and lower angle-irons. I

In testimony whereof I affix my signature.

CHARLES W. CUNDIFF. 

